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The “Digestive System of Frog Model” (Blister Series) by IBEX SCIENCES is a three-dimensional, vacuum-formed plastic relief model engineered for zoology, biology, and comparative anatomy classes. [1]
This lightweight “blister” format features a highly detailed, color-coded raised profile that showcases the complete alimentary canal and associated digestive glands of an amphibian (Rana tigrina). It serves as a permanent, mess-free alternative or anatomical companion to traditional lab dissections. [1, 2, 3]
The model systematically displays the pathway of food and chemical digestion through the following anatomical structures:
1. The Anterior Alimentary Tract
2. The Stomach & Intestinal Track
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- Stomach (Internal Cutaway): Depicts a muscular, crescent-shaped organ where mechanical churning and early chemical digestion take place. The relief often includes internal folds (rugae). [1, 2, 3]
- Small Intestine: Highlighted as a coiled tube split into the duodenum (which receives digestive juices) and the ileum (where nutrient absorption into the bloodstream occurs). [1]
- Large Intestine (Rectum): The wider, straight tube that stores undigested metabolic waste before excretion. [1, 2, 3, 4]
- Cloaca & Cloacal Aperture: The final common chamber where the digestive, urinary, and reproductive tracts terminate.
3. Accessory Digestive Glands
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- Liver: A large, prominent multi-lobed gland (usually colored dark red or brown) that secretes bile to emulsify fats.
- Gallbladder: A small, round sac nested near the liver lobes that stores concentrated bile.
- Pancreas: An elongated gland nestled in the loop between the stomach and duodenum that produces vital digestive enzymes. [1, 2, 3, 4, 5]
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